127671105560 has 128 divisors (see below), whose sum is σ = 299677708800. Its totient is φ = 48898375680.

The previous prime is 127671105533. The next prime is 127671105647. The reversal of 127671105560 is 65501176721.

It is a super-2 number, since 2×127671105560² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59966576 + ... + 59968704.

It is an arithmetic number, because the mean of its divisors is an integer number (2341232100).

Almost surely, 2^127671105560 is an apocalyptic number.

127671105560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127671105560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149838854400).

127671105560 is an abundant number, since it is smaller than the sum of its proper divisors (172006603240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127671105560 is a wasteful number, since it uses less digits than its factorization.

127671105560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 127671105560 in words is "one hundred twenty-seven billion, six hundred seventy-one million, one hundred five thousand, five hundred sixty".